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http://dx.doi.org/10.12772/TSE.2017.54.397

The Characteristics of Modified Polycarbosilane by Different Organic Solvents  

Joo, Young Jun (Ceramic Fiber & Composites Center, Korea Institute of Ceramic Engineering and Technology)
Khishigbayar, Khos-Erdene (Ceramic Fiber & Composites Center, Korea Institute of Ceramic Engineering and Technology)
Kim, Cheol Jin (Division of Nano & Advanced Materials Engineering, Gyeongsang National University)
Cho, Kwang Youn (Ceramic Fiber & Composites Center, Korea Institute of Ceramic Engineering and Technology)
Publication Information
Textile Science and Engineering / v.54, no.5, 2017 , pp. 397-402 More about this Journal
Abstract
Silicon carbide (SiC) fiber with a high tensile strength and heat resistance was synthesized using polycarbosilane (PCS) precursor. The many research have been progressed to improve the spinnability and handling strength of PCS green fiber due to its brittle property by a low molecular weight. However, the study for the effect of various solvents, which is used to synthesize the PCS or to modify the PCS structure using additive is insufficient. Therefore, PCS modified by polymer blend method using various organic solvents such as para-xylene, meta-xylene, ortho-xylene, and cyclohexane. The thermal properties and GPC profile for the modified PCSs show the different interaction between PCS and solvent. The spinnability of PCSs was confirmed through apparent activation energy, calculated by Andrade equation, and spinning process. SiC fiber that is converted from blended PCS fibers with para-xylene and ortho-xylene show the same morphology containing the clean and smooth surface.
Keywords
polycarbosilane; organic solvent; characteristics; spinnability; and SiC fiber;
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Times Cited By KSCI : 1  (Citation Analysis)
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